Abstracts tagged "T Cell"

Abstract Number: 0385 • ACR Convergence 2022
T Cell Receptor Sequencing Identifies Two Classes of T Cells Enriched in HLA-B27-associated Inflammation
Michael Paley¹, Lynn Hassman², Grace Paley², Nicole Linskey², Philip Ruzycki², Jennifer Laurent², Lacey Feigl², Luke Springer² and Wayne Yokoyama², ¹Washington University in St. Louis, Saint Louis, MO, ²Washington University School of Medicine, St. Louis, MO
Background/Purpose: HLA-B27 is genetically linked to Axial Spondyloarthritis (axSpA) and anterior uveitis (AU), an inflammatory ocular disease that can lead to cataract, glaucoma, and permanent…
Abstract Number: 0666 • ACR Convergence 2022
HRES-1/Rab4 Controls the Overexpression of CD38 and Depletion of IL-2 in CD4+ T Cells; Potential Involvement in Proinflammatory Lineage Development in SLE
Seong Hee (Joy) Park¹, Akshay Patel² and Andras Perl³, ¹Upstate Medical University, Syracuse, NY, ²SUNY Upstate Medical University, Syracuse, NY, ³SUNY, Syracuse, NY
Background/Purpose: HRES-1/Rab4 (Rab4A) is a small GTPase that is overexpressed in SLE patient T cells1,2, mediates the enhanced recycling of CD3 and CD4 cell surface…
Abstract Number: 1728 • ACR Convergence 2022
Increased Frequency of Highly Differentiated T Effector Memory Cells Re-expressing CD45RA (Temra) and Cytomegalovirus Seropositivity Are Associated with Persistent Disease Specifically Refractory to Anti-TNF Therapy in Rheumatoid Arthritis
Su-Ann Yeoh, James Kimpton, Muhammad Shipa, Eleanor Hawkins, Arne Akbar and Michael Ehrenstein, University College London, London, United Kingdom
Background/Purpose: Enrichment of highly differentiated T cells have been reported in rheumatoid arthritis (RA) patients compared to healthy individuals. The role of highly differentiated T…
Abstract Number: 1749 • ACR Convergence 2022
Mass Spectrometry-Based HLA Peptidomics Analysis Reveals Both Expected and Novel Citrullinated Antigen Targets in Rheumatoid Arthritis
Eddie James¹, Cliff Rims², Sylvia Posso², Jeffrey Carlin³, William Kwok², Shao-En Ong⁴ and Jane Buckner¹, ¹Benaroya Research Institute at Virginia Mason, Seattle, WA, ²Benaroya Research Institute, Seattle, WA, ³Virginia Mason Medical Center, Seattle, WA, ⁴University of Washington, Seattle, WA
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease in which citrullinated self-antigens are recognized by anti-citrullinated protein antibodies (ACPA) and T cells. ACPA are a…
Abstract Number: 0498 • ACR Convergence 2022
A Longitudinal Assessment of Citrulline-specific CD4 T Cells in CCP+ at Risk Subjects and Patients with New-onset Rheumatoid Arthritis
Jing Song¹, Scott Presnell¹, Cliff Rims², Matthew Dufort¹, Hannah DeBerg¹, Peter Linsley², V. Michael Holers³, Kevin D Deane⁴, Eddie James¹ and Jane Buckner¹, ¹Benaroya Research Institute at Virginia Mason, Seattle, WA, ²Benaroya Research Institute, Seattle, WA, ³University of Colorado, Denver, CO, ⁴University of Colorado Denver Anschutz Medical Campus, Denver, CO
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease, in which autoantibodies targeting citrullinated (cit) peptides can be detected prior to diagnosis. We previously reported an…
Abstract Number: 0787 • ACR Convergence 2022
Relationship Between Humoral and Cellular Immune Responses in Persons with Rheumatoid Arthritis Following a Third Dose of COVID-19 Vaccine
Sara Tedeschi¹, Daniel Solomon¹, Yuezhou Chen², Jack Ellrodt¹, Mary Grace Whelan¹, Jacklyn Stratton¹, Keigo Hayashi³, Noah Whiteman², Lin Chen¹, Ifeoluwakiisi Adejoorin¹, Kathryne Marks¹, Emma Gomez-Rivas¹, Deepak Rao¹, Anna Jonsson¹ and Duane Wesemann², ¹Brigham and Women's Hospital, Boston, MA, ²Harvard Medical School, Boston, MA, ³Brigham and Women's Hospital, Okayama, Japan
Background/Purpose: DMARDs that treat RA may reduce immune responses to COVID-19 vaccination. We compared measures of humoral and cell-mediated immunity in RA patients before and…
Abstract Number: 1729 • ACR Convergence 2022
SLAMF4+ CCR5+ Effector Memory CD4+ T Cells Are Polyfunctional, Resistant to Exhaustion, and Expanded in Rheumatoid Arthritis
Mégane Lacaud¹, Houda-Ghozlane Bouzidi¹, Magali Breckler², Delphine Lemeiter², Johanna Sigaux³, Luca Semerano⁴, Marie-Christophe Boissier⁵, Natacha Bessis⁶ and Jerome Biton⁷, ¹Sorbonne Paris Nord University, Inserm U1125, Bobigny, France, ²Sorbonne Paris Nord University, Inserm UMR1125, Bobigny, France, ³Avicenne Hospital, Sorbonne Paris Nord University, Inserm UMR1125, Bobigny, France, ⁴Hopital Avicenne - AP-HP, Sorbonne Paris Nord University, INSERM UMR1125, Bobigny Cedex, France, ⁵INSERM UMR 1125, Sorbonne Paris Nord University,Rheumatology Dpt, APHP, GHUPSSD, Avicenne Hosp, Bobigny, France, ⁶INSERM 1125 and University Sorbonne Paris Nord, Bobigny, France, ⁷INSERM UMR 1125, Sorbonne Paris Nord University, Bobigny, France
Background/Purpose: CD4+ Foxp3- conventional T cells (Tconv) play a key role in the inflammatory process involved in rheumatoid arthritis (RA). Usually, chronic stimulation of T…
Abstract Number: 1961 • ACR Convergence 2022
COVID-19 mRNA Vaccine Induced Antibody Titers and IFN-g Responses Are Decreased in Persons with Rheumatoid Arthritis and Older Age
Holly Dudley¹, megan O'Mara², Ann Auma¹, Jenny Gong³, Yael Ross⁴, Natalie Gurevich², Larraine Gordesky⁵, Nora Singer⁶, Lenche Kostadinova⁷, Brigid Wilson⁷, David Zidar⁷, Christopher King¹, David Canaday¹, Carey Shive¹, Maya Mattar⁸ and Donald Anthony⁹, ¹Case Western Reserve University, Cleveland, OH, ²Cleveland Veteran Affairs Medical Center, Cleveland, OH, ³Case Western School of Medicine, Cleveland, OH, ⁴Case Western Reserve University at MetroHealth Medical Center, Atlanta, GA, ⁵MetroHealth Medical Center, Cleveland, OH, ⁶The MetroHealth System at Case Western Reserve University School of Medicine, Cleveland, OH, ⁷VA Medical Center, Cleveland, OH, ⁸Louis Stokes VA Medical Center, Mayfield Heights, OH, ⁹Case, VA, Metro, Chardon, OH
Background/Purpose: People with autoimmune diseases have worse outcomes if infected by SARS-CoV2. In particular, persons with rheumatoid arthritis (RA), have lower antibody responses to COVID-19…
Abstract Number: L07 • ACR Convergence 2021
Depletion of KLRG1+ T Cells in a First-in-human Clinical Trial of ABC008 in Inclusion Body Myositis (IBM)
Niti Goel¹, Dulce Soler-Ferran², Monette Coutreau², Jorge Escobar³, Kate Courtemanche², Merrilee Needham⁴ and Steven Greenberg⁵, ¹Abcuro, Inc.; Duke University, Durham, NC, ²Abcuro, Inc., Newton, MA, ³Abcuro, Inc., Hayward, CA, ⁴Perron Institute, Murdoch University, Perth, Australia, ⁵Brigham and Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Inclusion body myositis (IBM), a relentlessly progressive autoimmune skeletal muscle disease, has no effective available pharmacological therapy. A prominent feature of IBM on microscopy…
Abstract Number: 1012 • ACR Convergence 2021
Altered T Cell Responses, and Synergistic Regulation of Synovial Fibroblasts Function in Children with Down’s Syndrome-Associated Arthritis
Serena Foo¹, Achilleas Floudas², Aisling O' Brien¹, Sharon Ansboro¹, Ronan Mullan³, Douglas Veale⁴, Emma MacDermott⁵, Derek Deely⁶, Charlene Foley⁶, Orla Killeen⁶ and Ursula Fearon¹, ¹Trinity College Dublin, Dublin, Ireland, ²Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Ireland, ³Tallaght University Hospital, Dublin, Ireland, ⁴University College Dublin, Dublin, Ireland, ⁵Children’s Health Ireland (CHI) at Crumlin, Dublin, Ireland, ⁶Children's Health Ireland, Crumlin, Dublin, Ireland
Background/Purpose: Juvenile idiopathic arthritis (JIA) was thought to be the most common inflammatory arthritis in children. However an aggressive, erosive arthritis of little-known immunologic mechanism…
Abstract Number: 1438 • ACR Convergence 2021
Development of a Computationally Designed, Hyperstable Dual Inhibitor of the IL-2 and IL-15 Receptors: A Novel Therapeutic Candidate for Inflammatory Conditions
Renan Vergara¹, Alex Chen¹, Jerry Chen¹, Marianne Riley¹, Luis Blancas-Mejia¹, Christie Mortales¹, Tania Berrocal¹, Tanu Priya¹, Marsha Mason¹, Kevin Yu¹, Olga Sharapova¹, Jorgen Nelson¹, Alfredo Quijano-Rubio¹, Thomas Linsky¹, Ryan Swanson¹ and Daniel-Adriano Silva², ¹Neoleukin Therapeutics, Inc., Seattle, WA, ²Formerly of Neoleukin Therapeutics, Inc., Seattle, WA
Background/Purpose: T cell mediated pathology is central to many forms of autoimmunity, and cytokines perform critical inflammatory functions during this process. IL-2 and IL-15 are…
Abstract Number: 1499 • ACR Convergence 2021
Imbalance Between T Follicular Cells and T Regulatory Cells Involved in High Fat-Diet Associated Lupus Development in MRL/lpr Mice
Ronak Patel¹, Therese Posas-Mendoza², Juan Meng³, Xuhua Shi³, Swathi Dhulipala⁴, Chad Hille², Linh Hellmers¹, Robert Quinet⁵, William Davis⁶, Jerald Zakem⁷, Chandana Keshavamurthy¹, Zongbing You³ and Xin Zhang¹, ¹Ochsner, New Orleans, LA, ²Ochsner Clinic Foundation, New Orleans, LA, ³Tulane University, New Orleans, LA, ⁴Ochsner Clinic Foundation, River Ridge, LA, ⁵Ochsner Health, River Ridge, LA, ⁶Ochsner Medical Center, New Orleans, LA, ⁷Ochsner Health Systems, Metairie, LA
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease characterized by persistent inflammation and production of autoantibodies, which deposit within numerous tissues leading to…
Abstract Number: 1507 • ACR Convergence 2021
Role of CD4+ T Cells in the Pathogenesis of RA: Immunization with Citrullinated T Cell Epitopes Is Sufficient to Induce Immunological and Clinical Manifestations of Arthritis in DR4-Transgenic Mice
Elena Tonti¹, Bhargavi Duvvuri², Sudeshna Dhar¹, Derek Haaland³, Maggie Larche¹ and Mark Larché¹, ¹McMaster University, Hamilton, ON, Canada, ²University of Washington, Seattle, WA, ³McMaster University, Hamilton, Ontario and The Waterside Clinic, Oro Medonte, ON, Canada
Background/Purpose: Although the etiology of rheumatoid arthritis (RA) remains unclear, existing research suggests a complex interplay of both genetic and environmental factors. Citrullinated proteins/peptides, and…
Abstract Number: 1508 • ACR Convergence 2021
Decrease of Angiogenic T Cells Associated to the Presence of Interstitial Lung Disease in Patients with Connective Tissue Diseases
Verónica Pulito-Cueto¹, Sara Remuzgo-Martinez¹, Fernanda Genre¹, Belén Atienza-Mateo², Victor M. Mora-Cuesta³, David Iturbe-Fernández³, Leticia Lera-Gómez¹, Raquel Perez-Fernández¹, Pilar Alonso-Lecue⁴, Javier Rodriguez-Carrio⁵, Diana Prieto-Peña⁶, Virginia Portilla⁶, Ricardo BLANCO⁷, Alfosno Corrales⁶, José M. Cifrián⁸, Raquel López-Mejías¹ and Miguel Ángel gonzalez-Gay⁹, ¹Research group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, IDIVAL, Santander, Spain, ²Group "Research in genetic epidemiology and atherosclerosis of systemic diseases and in bone metabolic diseases of the locomotor system", IDIVAL; and Department of Rheumatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ³Research group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System; Department of Pneumology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁴Research group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, IDIVAL; Department of Pneumology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁵Deparment of Functional Biology, Immunology Area, Faculty of Medicine, Universidad de Oviedo, Oviedo, Asturias, Spain., Oviedo, Spain, ⁶Research group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, IDIVAL; Department of Rheumatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁷Hospital University Marqués de Valdecilla, Santander, Spain, ⁸Research group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, IDIVAL; Department of Pneumology, Hospital Universitario Marqués de Valdecilla; School of Medicine, Universidad de Cantabria, Santander, Spain, ⁹Research group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, IDIVAL, Division of Rheumatology, Hospital Universitario Marqués de Valdecilla; School of Medicine, Universidad de Cantabria, Santander, Spain. Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
Background/Purpose: Interstitial lung disease (ILD) is one of the most significant complications of connective tissue diseases (CTD) leading to an increase of the morbidity and…
Abstract Number: 0021 • ACR Convergence 2021
Unique Alterations in Circulating T Peripheral Helper Cells Are Found in Different Ethnic Groups of ACPA+ Individuals Both At-risk for and with Classified RA
Hideto Takada¹, Yuko Okamoto², Yasuhiro Katsumata³, Jennifer Seifert⁴, Kristen Demoruelle⁵, Jill Norris⁶, Kevin Deane⁷, Masayoshi Harigai³ and V. Michael Holers⁸, ¹Tokyo Women's Medical University School of Medicine, Shinjuku-ku, Japan, ²Tokyo Women's Medical University Division of Rheumatology, 10-22 Kawada-cho, Shinjyuku-ku, Tokyo, Japan, ³Tokyo Women's Medical University School of Medicine, Tokyo, Japan, ⁴University of Colorado School of Medicine, Littleton, CO, ⁵University of Colorado Anschutz Medical Campus, Aurora, CO, ⁶Colorado School of Public Health, Aurora, CO, ⁷University of Colorado Denver, Denver, CO, ⁸University of Colorado, Denver, CO
Background/Purpose: Production of autoantibodies following pathogenic T and B cell interactions precede the development of RA. T follicular helper (Tfh) cells and T peripheral helper…

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